PROSPECT CREEK, ALASKA

Period of Record General Climate Summary - Growing Degree Days

Station:(507778) PROSPECT CREEK CAMP
From Year=1970 To Year=2001
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	0	0	0	2	132	395	559	394	81	0	0	0	1562
40 S	0	0	0	2	133	529	1087	1481	1562	1562	1562	1562	1562
45 M	0	0	0	0	53	253	404	250	26	0	0	0	987
45 S	0	0	0	0	53	306	711	960	987	987	987	987	987
50 M	0	0	0	0	15	131	256	133	7	0	0	0	542
50 S	0	0	0	0	15	146	403	535	542	542	542	542	542
55 M	0	0	0	0	3	50	134	55	2	0	0	0	244
55 S	0	0	0	0	3	53	187	242	244	244	244	244	244
60 M	0	0	0	0	1	13	48	17	0	0	0	0	79
60 S	0	0	0	0	1	14	62	79	79	79	79	79	79

Corn Growing Degree Days
50 M	0	0	0	1	94	222	325	239	60	0	0	0	942
50 S	0	0	0	1	95	317	642	882	942	942	942	942	942

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu